OBM was a long-standing book seller in Hobart. The company was formed in 1922 when three senior employees of J.Walch & Sons formed, with Walch's assistance, a bookselling and stationely business, to replace that operated by Walchs.  The partners were Nathaniel Oldham (1860-1938), W.G. Beddome (d. 1941) and Meredith.  The business was at the Book Arcade, 36 Elizabeth Street, Hobasrt.  The company lasted to the 1980s, when it was replaced by Angus & Robertson.